As for food functionality it is very comparable to software remote control of a computer. There are 3 key features that stand out:

• It does not rely on the target machine being booted into the OS. This means you can access it even if it crashes or locks up.
• It can “push” the power button on the machine. This requires an accessory that plugs into the motherboard. So you can force a machine off or cold boot a system.
• You can mount a boot ISO. This is like having a bootable flash drive in the target machine so you can install an OS remotely.

Edit: Because this is essentially full access to the machine as if you where physically at it, it should be considered a security risk. Not saying that you need to be scared of it, but you should be aware of the risk and protect it from unauthorized access.

I would argue that under the right conditions it could negatively impact physical growth. As social creatures, humans can experience a lot of stress from isolation. I think it well understood that intense prolonged stress can have many negative impacts on the body. It could negatively impact physical development in that way.